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Astronomy Picture of the Day - NGC 6357: Cathedral to Massive Stars
NASA ^ | 23 Sep, 2025 | Image Credit: NASA, ESA, CSA, STScI, JWST; Processing: Alyssa Pagan (STScI); Rollover: NASA, ESA, HS

Posted on 09/24/2025 12:21:44 PM PDT by MtnClimber

Explanation: How massive can a normal star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it one of the most massive stars known. This star is the brightest object located in the central cavity near the bottom center of the featured image taken with the Webb Space Telescope in infrared light. For comparison, a rollover image from the Hubble Space Telescope is also featured in visible light. Close inspection of the images, however, has shown that Pismis 24-1 derives its brilliant luminosity not from a single star but from three at least. Component stars would still remain near 100 solar masses, making them among the more massive stars currently on record. Toward the bottom of the image, stars are still forming in the associated emission nebula NGC 6357. Appearing perhaps like a Gothic cathedral, energetic stars near the center appear to be breaking out and illuminating a spectacular cocoon.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 09/24/2025 12:21:44 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 09/24/2025 12:22:08 PM PDT by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...
Pinging the APOD list

πŸͺ 🌟 🌌 πŸ” At the site there are both IR and visible light images. I can only copy the link to one. If you move your cursor over the photo it will give one image and move your cursor off the image to get the other image.

3 posted on 09/24/2025 12:26:14 PM PDT by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

It would be awesome to see that in motion.


4 posted on 09/24/2025 1:33:25 PM PDT by ComputerGuy
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To: ComputerGuy

See it Move-—πŸ’―
But I’d be worried about
Getting Out of it’s Way !


5 posted on 09/24/2025 1:54:42 PM PDT by Big Red Badger (ALL Things Will be Revealed !)
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To: MtnClimber

It’s very beautiful, no matter how we see it.


6 posted on 09/24/2025 5:03:20 PM PDT by telescope115 (Ad Astra, Ad Deum…)
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